Improvement in feeding devices for grain-drills



H. CLAYTON.

FEEDING-DEVICE FOR GRAIN-DRILLS.

Patented Jan.9,1877.

N-FETERS, FHOTO-LITNOGRAPHER WASHINGTON D C.

'INITED [STATES PATENT OFFICE.

HENRY CLAYTON, OF DAYTON, OHIO, ASSIGNOR OF ONE- HALF HIS RIGHT TOJOSIAH S. TURNER AND BARTON PICKERING, OF SAME PLACE.

IMPROVEMENT IN FEEDING DEVICES FOR GRAIN-DRILLS.

Specification forming part of Letters Patent No. 186,080, dated January9, 1877 application filed June 15, 1876.

To all whom it may concern:

Be it known that I, HENRY CLAYTON, of the city of Dayton and State ofOhio, have invented an Improved Feeding Mechanism for Grain-Drills, ofwhich the following is a specification The object of my invention is toso construct a feeding device for grain-drills in which the amount ofgrain discharged shall be determined by the position of the case thatincloses the feed-rollers, and thereby dispense with changeable gear.

Figure 1 is a side elevation of the feeding device with a portion insection. Fig. 2 is a transverse section through the feed roller. Fig. 3is an end elevation.

A represents the feed-box, illustrated by a side, end, and sectional-view in the several figures. It is of the usual form, and consists oftwo boards held together by the end pieces L. The bottom consists of ahollow case or tube, which serves both as a bottom for the feed-box anda support to the feed-rollers. The case B is a hollow metallic cylinder,having a length slightly longer than that of the feed-box. To the rightend is attached the index I, which points to a scale on the end of thebox, the use of said scale being to indicate the quantity of grainpassing through the feeding device. The case has a series of orificesfor the passage of the grain through into the feed-rollers C. Theseorifices extend about one-third the circumference of the case, (see 0,Fig. 2,) and are adapted in width to the motion given to thefeed-rollers to discharge the proper amount of grain. The ends L of thefeed-box have orifices that support the ends of the case, and withinwhich the same freely moves. To prevent the movement of the case by thefriction of the rollers when the index is placed in position, it shouldbe secured in some suitable manner. D D are bearings for theroller-shaft K, which are snugly fitted into the case, the flanged headsof which serve to hold the shaft longitudinally. These bearings extendsufficiently inward to form a side bearing to the end rollers, as shownat Fig. 1. The shaft is square, and the shoulders at the spindles engagethe bearings, and thus prevent longitudinal movement of the same. To theright end of the shaft is attached a crank, E, for the purpose ofturning the rollers.

In a practical machine cog-gear connects the roller-shaft with thewheel-shaft, to give the requisite motion. The rollers 0 have squareorifices through their centers and cavities about their peripheries, theends being cylindrical, and fill the case, and the ends are notched toreceive the bar m. These bars serve to stay the rollers in their properplaces as they extend from one to anotherof a series of rollers, the endrollers being held by the end bearings, as heretofore described.

To put the rollers into the case, it is only necessary to slip them ontothe shaft with the dividing-bars between, and then place the shaftwithin the case and secure the bearings with screws.

At H, Fig. 2, is shown a slide, which sets close down upon the roller,and this, with the side of the box closing over one of the cavities ofthe roller, prevents the grain passing out in that direction. The amountof grain that may enter the rollers is determined by the width ofopening between the longitudinal edges of the orifies within the caseand the slide, and this space is enlarged or contracted by moving theindex-arm which carries the case; and thus is regulated the amount ofgrain discharged by the rollers from the feed-box. If the index-arm isturned to the right the amount is increased, and if to the left,diminished. When properly adjusted the index-plate will indicate a givenamount of grain discharged.

The movement of the feeding-rollers is from left to right, and as thegrain passes into the cavities it is carried within the case anddischarged at the lower end of the orifice within the same.

The feeding device herein described is a simple and effective mechanismused in connection with grain-drills, for the purpose of regulating thedischarge, and thereby dispensing with the complicated gear usually usedfor the purpose.

What I claim as my invention is the bearings D, and dividing-arms m, tosupport the said seed-rollers in proper position laterally,substantially as setforth.

HENRY CLAYTON.

Witnesses:

P. H. GUNOKELZ ASHLEY BRO N.

